>1u54B (B:) observed residues (from ATOM records) ltcligekdlrlleklgdgvvrrgewdapsgktvsvavkcleamddfirevnamhsldhr nlirlygvvltppmkmvtelaplgslldrlrkhqghfllgtlsryavqvaegmgyleskr fihrdlaarnlllatrdlvkigdfglmralpqnddhyvmqehrkvpfawcapeslktrtf shasdtwmfgvtlwemftygqepwiglngsqilhkidkegerlprpedcpqdiynvmvqc wahkpedrptfvalrdfllea